Sunday, May 22, 2022

[Botany • 2022] Swertia pahalgamensis (Gentianaceae) • A New Species from Kashmir Himalaya, India

Swertia pahalgamensis   

in Islam, Khuroo & Nawchoo, 2022.

Swertia pahalgamensis (Gentianaceae), a new species from Kashmir Himalaya, India is described here with photographic illustrations. The new species resembles with Swertia thomsonii in some morphological characters, but differs clearly in having basal leaves elliptic-spathulate with acute apices, petals yellowish green, ovate, sub-obtuse apices, nectar guides with prominent bluish straight lines, nectaries viscous, sub-confluent, round to cushion-shaped, number, size and orientation of fimbriae, anthers oblong, seeds oval-round with wider wings.

Keywords: Biodiversity, Flora, Himalaya, Kashmir, New species, Swertia, Taxonomy, Eudicots



 Tajamul Islam, Anzar Ahmad Khuroo, and Irshad A Nawchoo. 2022. Swertia pahalgamensis (Gentianaceae), A New Species from Kashmir Himalaya, India.  Phytotaxa. 547(2); 201-207. DOI: 10.11646/phytotaxa.547.2.8

[Botany • 2022] Curcuma sixsensesensis & C. vinhlinhensis (Zingiberaceae, sect. Ecomata) • Two New Taxa from coastal Central Vietnam

Curcuma vinhlinhensis D.D. Nguyen & T.A. Le,

in Nguyen, Le, Hoang, Le & Nguyen, 2022.  

 Curcuma sixsensesensis and Curcuma vinhlinhensis, two new species belonging to subgenus Ecomata from Coastal Central Vietnam, are described and illustrated in the present articles. The C. sixsensesensis easily gets confused with C. newmanii Škorni?k. in compact rhizome; short lateral inflorescence composing of a few bracts; white corolla lobes and lateral staminodes; white labellum with a yellow mid-rid band but readily distinguished in rhomboid lateral staminodes (vs. obovate) with apex acuminated (vs. rounded); labellum 3-lobed (vs. emarginated), a mid-rid band being yellow at apex half, white at the base (vs. yellow throughout); anther crest presented (vs. reduced); oblong (lightly arching) (vs. L- shaped) anther in side view with slender and inward-pointing (vs. stout and outward-facing) spurs. The second one is similar to C. pambrosima Škorni?k. & N. S. Lý in general habit and shape of the spike but differs in reduced ligule ca. 1 (vs. 4-5) mm long; lateral staminodes orange throughout (vs. yellow at apex, white at base), elliptic with round apex (vs. unequally ovate-rhomboid with acute apex); anther spurs elongate into the acute apex, outward-facing (vs. curved inward), ca. 2-3 (vs. ca. 1,5) mm long, anther crest reduced, up to 0.5 mm, 2-lobed (vs. prominent anther crest, ca. 1.5 mm apex round). Data for each described species comprises standard citation of type specimens, description, proposed species epithet etymology, data on ecology and distribution, and short taxonomic notes and morphological comparison of these new species with its allies species, a revised key to species of Curcuma sect. Ecomata in Vietnam is included.

Keywords: Curcuma sixsensesensis, C. vinhlinhensis, Khanh Hoa, Quang Tri, Zingiberaceae

Curcuma sixsensesensis D.D. Nguyen & T.A. Le:
 A. habitat; B. and C. inflorescences with opening flowers;
D. habit with rhizome and young inflorescence; E. habit with a leafy shoot at late anthesis; F. ligule;
H-H”: detail of anther; I: ovary with epigynous glands; J: detail of calyx apex.
Photographed by Six Senses Ninh Van Bay team (A—E, H, G from type specimen LTA-1220); 
T.A.Le (G’, H’, H”, I, J, F from specimen LTA-1220 treated alcohol)

Curcuma sixsensesensis D.D. Nguyen & T.A. Le, sp. nov. 

Diagnosis: New species is similar to C. newmanii Škorničk. in a compact rhizome, short lateral inflorescence composed of a few bracts, white corolla lobes and lateral staminodes, white labellum with the yellow mid-rid band but readily distinguished in lateral staminodes being rhomboid (vs. obovate) with apex acuminated (vs. rounded); labellum 3-lobed (vs. emarginated), the mid-rid band being yellow at apex half, white at the base (vs. yellow throughout); anther crest presented (vs. reduced); oblong (lightly arching) (vs. L- shaped) anther in side view with slender and inward-pointing (vs. stout and outward facing) spurs. 

Etymology: The specific epithet sixsensesensis is derived from Six Senses Ninh Van Bay Resort, the name of an ecology resort where the new species occur around and thanks to the resort management board for supporting our floristic investigation as long as conserving the wild environment around. 

Habitat, ecology and phenology. Under the canopy of coastal semi-deciduous forests at elevations 150–200 m. The flowering period coincides with the beginning of the rainy season in Coastal Central Vietnam from August to October.


Curcuma vinhlinhensis D.D. Nguyen & T.A. Le: 
A. habit; B. flower in front view; C. single flower with calyx tube D. Rhizome; E. inflorescence; F. lamia with petiole; G. ligule; H. bracts (from left: bracts at the base to the top of inflorescence); I. flower dissection (from left: calyx, dorsal and lateral corolla lobes, lateral staminode, labellum, a floral tube attached stamen, ovary and epigynous glands).
 Photographed by T.A. Le

Curcuma vinhlinhensis D.D. Nguyen & T.A. Le sp. nov. 

 Diagnosis. similar to C. pambrosima Škorničk. & N.S.Lý in general habit and shape of the spike but differs in lateral staminodes being orange throughout (vs. yellow at apex, white at base), elliptic with round apex (vs. unequally ovate-rhomboid with acute apex), anther spurs conical, elongated into the acute apex, outward-facing (vs. cylindrical, curved inward), ca. 2-3 (vs. ca. 1,5) mm long, reduced anther crest up to 0.5 mm, 2-lobed (vs. prominent anther crest ca. 1.5 mm, apex round) 

Etymology: The specific epithet vinhlinhensis is derived from Vinh Linh District, the hometown of the third author, where this species was first collected. 

Habitat, ecology and phenology. Cultivated on Bazan soil by local people as a source of starch for traditional food in the elevation of about 0-100 m. The flowering period coincides with the beginning of the rainy season in Coastal Central Vietnam from August to October.

Danh Duc Nguyen, Tuan Anh Le, Quoc Huy Hoang, Quoc Thuong Le and Emmy Nguyen. 2022.  Two New Taxa of Curcuma sect. Ecomata (Zingiberaceae: Zingibereae), from coastal Central Vietnam. Biodiversitas. 23: 2512-2519.

[Botany • 2022] Clematis pseudotubulosa (Ranunculaceae) • A New Species from Korea

Clematis pseudotubulosa B. K. Park, 

in Park, Kim, Chung, ... et Jang, 2022.

Clematis pseudotubulosa (Ranunculaceae), a new species from Gyeonggi-do in the Republic of Korea, is described and illustrated. The new species is morphologically similar to C. takedana but differs in its leaves, which are always ternate with shallowly lobed leaflets (vs. 1-pinnate with deeply lobed three to five leaflets), and its oblong-shaped flower buds (vs. ovoid), larger flowers (vs. smaller flowers), and pantoporate pollen (vs. tricolpate). A detailed species description, geographical distribution, and an identification key for all species of Clematis that occur in Korea are also provided.

Keywords: Clematis, interspecific hybridization, new species, Ranunculaceae

Holotype specimen of Clematis pseudotubulosa B. K. Park
(27 Aug 2019. J.-S. Kim kjs19046 KB).

Illustration of Clematis pseudotubulosa B. K. Park.
A. Plant. B. Adaxial surface of the leaflet. C. Abaxial surface of the leaflet. D. Polar view of the flower. E. Equatorial view of the flower. F. Sepal. G. Stamen. H. Pistil. I. Fruit.
Illustrations by Hee Soo Kim. 

Photographs of Clematis pseudotubulosa B. K. Park.
A. Plant. B. Lignified stem. C. Herbaceous stem. D–F. Leaf (E, adaxial surface; F, abaxial surface). G. Inflorescence. H. Peduncle. I. Pedicel. J. Flower. K–L. Sepal (L, adaxial surface; M, abaxial surface). N. Stamen. O–P. Pistil. Q. Aggregated achenes. R. Achene. S. Seed.

Clematis pseudotubulosa B. K. Park, sp. nov

Vernacular name: Deong-gul-jo-hui-pul (덩굴조희풀)

English colloquial name: Creeping hyacinth-flower clematis
Distribution: Clematis pseudotubulosa is restricted to the Korean Peninsula (South Korea, including Hwaseong-si and Gwangju-si, Gyeonggi-do) (Fig. 4).

Beom Kyun PARK, Jin-Seok KIM, Gyu Young CHUNG, Jung-Hyun KIM, Dong Chan SON and Chang-Gee JANG. 2022. Clematis pseudotubulosa (Ranunculaceae), A New Species from Korea. Korean Journal of Plant Taxonomy. 52(1); 35-44. DOI: 10.11110/kjpt.2022.52.1.35

[Ichthyology • 2022] Ancistrus luzia • A New Species of Ancistrus (Siluriformes: Loricariidae) from Tapajós and Xingu Basins, Brazil

Ancistrus luzia
Neuhaus, Britto, Birindelli & Sousa, 2022

A new Ancistrus species is described from Tapajós and Xingu river basins. It is distinguished from its congeners by the singular body color pattern, consisting of dark vermiculated stripes almost all over the body, and also by combination of features as a narrow head, large internostril distance, and absence of rows of enlarged odontodes on the lateral plates. In addition, the new species is distinguished from congeners that inhabit the rio Tapajós basin by the presence of a fully-developed adipose fin (vs. adipose fin absent in Ancistrus parecis and A. tombador, and vestigial adipose fin or absent in A. krenakarore). It differs from A. ranunculus, also from the rio Xingu, by the color pattern, smaller body size, smaller gill opening, and narrower cleithral width. The new taxon adds a new record to the list of species shared among the Xingu and Tapajós basins.

Keywords: Amazon; Brazilian Shield; Bristlenose pleco; Hypostominae; Taxonomy

Lateral view of Ancistrus luzia, MNRJ 35505, 71.6 mm SL, rio Curuá, Xingu basin.
A. Preserved specimen. B. Specimen in life.

Ancistrus luzia, new species

Ancistrus L 159. ―Stawikowski, 1994:145 [DATZ magazine, new imports from Brazil, figs. 6 and 7].
Ancistrus sp. “lineolatus”. ―Ohara et al., 2017:259 [identification guidebook from Teles Pires].

Diagnosis. Ancistrus luzia is distinguished from its congeners, except A. claro Knaack, 1999 and A. centrolepis Regan, 1913, by the singular body color pattern, consisted of dark-vermiculated stripes on head, dorsal and lateral plates of trunk (vs. body uniformly colored or with light or dark spots or blotches over head or dorsal and lateral plates of trunk). Ancistrus luzia is distinguished from A. claro by its narrower head (head width 30.8–35.1% vs. 35.2–38.2% HL) and greater internostril distance (18.7–23.7% vs. 14.9–17.0% HL), and from A. centrolepis by the absence of rows of greatly enlarged odontodes on the lateral plates (vs. presence of one to three rows of enlarged odontodes on the lateral plates). Juveniles of A. leucostictus (Günther, 1864) might show lines similar to A. luzia, but color changes to light, large spots as specimens grow. In addition, the new species is distinguished from its congeners that inhabit the Tapajós basin by the presence of adipose fin fully developed (vs. adipose fin absent in A. parecis Fisch-Muller, Cardoso, da Silva & Bertaco, 2005, A. tombador Fisch-Muller, Cardoso, da Silva & Bertaco, 2005, and vestigial adipose fin or absent in A. krenakarore de Oliveira, Rapp Py-Daniel & Zuanon, 2016). Ancistrus luzia differs from A. ranunculus Muller, Rapp Py-Daniel & Zuanon, 1994, the only described species from the rio Xingu, by the smaller body size in adults, smaller gill opening (HL/interbranchial distance equals to 1.7 to 2.0 vs. 2.3 to 3.9) and narrower cleithral width (SL/cleithral width equals to 2.8–3.2 vs. 2.1–2.9).

Color pattern of juvenile specimens of Ancistrus luzia.
A, B. MZUSP 99877, 33.2 mm SL, from rio Teles Pires basin.
C, D. MNRJ 35504, 37.5 mm SL, from the rio Curuá, rio Xingu basin. 

Etymology. Named after “Luzia” (Lapa Vermelha IV Hominid 1), a female Homo sapiens skeleton and one of the oldest human remains found in the Americas (11,000–11,500 years before present), in 1974 and 1975 during excavations coordinated by the French archaeologist Annette Lamin-Emperaire (1917–1977) from the site of Lapa Vermelha IV, Lagoa Santa region, municipality of Pedro Leopoldo, state of Minas Gerais, Brazil (Neves et al., 1999). The skeleton is deposited at Museu Nacional Biological Anthropology collection (catalogue number 01959), Universidade Federal do Rio de Janeiro, and was recovered again after the fire that hit the institution on September 2, 2018 by Museu Nacional Rescue team, becoming a symbol of institutional hope and resilience. A noun in apposition.

Emanuel B. Neuhaus, Marcelo R. Britto, José Luís O. Birindelli and Leandro M. Sousa. 2022. A New Species of Ancistrus (Siluriformes: Loricariidae) from Tapajós and Xingu Basins, Brazil.  Neotrop. ichthyol. 20(1) • DOI: 10.1590/1982-0224-2021-0129 

Resumo: Uma nova espécie de Ancistrus é descrita das bacias dos rios Tapajós e Xingu. Distingue-se de suas congêneres pelo padrão de colorido único, que consiste em listras vermiculadas escuras em quase todo o corpo, e também pela combinação de características como cabeça estreita, maior distância entre as narinas e ausência de séries de grandes odontódeos nas placas laterais. Adicionalmente, a nova espécie pode ser diferenciada de suas congêneres da bacia do rio Tapajós pela presença de uma nadadeira adiposa totalmente desenvolvida (vs. nadadeira adiposa ausente em Ancistrus parecis e A. tombador, nadadeira adiposa vestigial ou ausente em A. krenakarore). Ela difere de A. ranunculus, a única outra espécie do rio Xingu, pelo padrão de colorido, menor tamanho corporal, menor abertura branquial e menor largura entre os cleitros. O novo táxon adiciona um novo registro à lista de espécies compartilhadas entre as bacias do Xingu e Tapajós.
Palavras-chave: Amazônia; Cascudo; Escudo Brasileiro; Hypostominae; Taxonomia

[Paleontology • 2022] Maomingosuchus acutirostris • A New Species of Maomingosuchus from the Eocene of the Na Duong Basin (northern Vietnam) sheds new light on the Phylogenetic Relationship of Tomistomine Crocodylians and their Dispersal from Europe to Asia

Maomingosuchus acutirostris 
 Massonne, Augustin, Matzke, Weber & Böhme, 2022

Maomingosuchus acutirostris sp. nov. is a new tomistomine crocodile from the middle–upper Eocene deposits (late Bartonian–Priabonian age, 39–35 Ma) of the Na Duong Basin in northern Vietnam. M. acutirostris can be differentiated from the type species Maomingosuchus petrolicus by having an acute anterior tip of the premaxilla. Both species differ from another Maomingosuchus from Krabi (Thailand) by differences in the surangular–dentary suture and maxillary alveoli. According to our phylogenetic results, M. acutirostris seems to be the sister species to the group M. petrolicus + Krabi-Maomingosuchus. The close relationship between those three tomistomines is supported in the present phylogenetic analysis by three synapomorphies. In our phylogenetic analysis, Maomingosuchus was retrieved in a basal position forming the sister group to Paratomistoma + Gavialosuchus + Melitosaurus + Tomistoma, including the extant Tomistoma schlegelii. This phylogeny indicates three different dispersal events of Tomistominae from Europe towards eastern Asia: 1) for the stem lineage of Maomingosuchus, no later than the late Eocene; 2) for the stem lineage of Penghusuchus pani + Toyotamaphimeia machikanensis, no later than the early–middle Miocene; and (3) for the stem lineage of T. schlegelii, during the Neogene.
Keywords: Eocene, Crocodylia, Asia, phylogeny, biogeography

Maomingosuchus acutirostris sp. nov.

Tobias Massonne, Felix J. Augustin, Andreas T. Matzke, Erich Weber and Madelaine Böhme. 2022. A New Species of Maomingosuchus from the Eocene of the Na Duong Basin (northern Vietnam) sheds new light on the Phylogenetic Relationship of Tomistomine Crocodylians and their Dispersal from Europe to Asia. Journal of Systematic Palaeontology.  DOI: 10.1080/14772019.2022.2054372

Previously unknown crocodile species lived in Asia 39 million years ago

[Ichthyology • 2022] Pangio pathala • A New Diminutive Subterranean Eel Loach Species of the Genus Pangio (Teleostei: Cobitidae) from southern India

Pangio pathala
 Sundar, Arjun, Sidharthan, Dahanukar & Raghavan, 2022

A second subterranean species of Pangio is described from an old dug-out well in Kerala, Southern India. The new species, Pangio pathala is unique within the genus in possessing the highest number (27) of caudal vertebrae. Pangio pathala is distinguished from P. bhujia, the only subterranean Pangio species known so far, in having four pectoral-fin rays (vs. three), five anal-fin rays (vs. six), 67 vertebrae (40 abdominal and 27 caudal vertebrae) (vs. 62–63), and a raw genetic distance of 8.1–8.7% in the mitochondrial cytochrome oxidase subunit 1 gene. This paper also provides an additional record of Pangio bhujia from a location 40 km south of the type locality.

Keywords: Pisces, freshwater fish, groundwater, Taxonomy, Western Ghats 

 Pangio pathala holotype (KUFOS.FT.2020.1, 32.1 mm SL) in life 

Pangio pathala, new species

Etymology. The species name is based on the Sanskrit word pâtâla, which means ‘below the feet’, denoting the subterranean realms of the universe—which are located under the earth’s surface. A noun in apposition.

Remya L. Sundar, C.P. Arjun, Arya Sidharthan, Neelesh Dahanukar and Rajeev Raghavan. 2022. A New Diminutive Subterranean Eel Loach Species of the Genus Pangio (Teleostei: Cobitidae) from Southern India. Zootaxa. 5138(1); 89-97. DOI: 10.11646/zootaxa.5138.1.9

To Find the Fish, Find the People: How Scientists Came Upon the Pathala Eel Loach

Saturday, May 21, 2022

[Herpetology • 2022] Trimeresurus mayaae • A New Cryptic Species of Green Pit Viper of the Genus Trimeresurus Lacépède, 1804 (Serpentes: Viperidae) from northeast India

Trimeresurus mayaae   
Rathee, Purkayastha, Lalremsanga, Dalal, Biakzuala, Muansanga & Mirza, 2022

Maya’s Pit Viper  ||  DOI: 10.1371/journal.pone.0268402
photos by H. T. Lalremsanga & J. Purkayastha.

A new cryptic species of green pit viper is described from northeast India, based on specimens collected from the state of Mizoram and Meghalaya. The new species is a member of the subgenus Viridovipera and is sister to Trimeresurus medoensis based on molecular data for mitochondrial cytochrome b gene, whereas resembles Trimeresurus gumprechti morphologically. A combination of characters helps delimit the new species from its congeners. Description of the new species highlights the need for dedicated surveys across northeast India to document its reptilian diversity, as this represents the third new species of the genus to be described in the past three years.

Trimeresurus mayaae sp. nov. in life
(a) holotype male NCBS NRC-AA-0012,  
(b) uncollected male , 
(c) uncollected female 
photos by Hmar Tlawmte Lalremsanga & Jayaditya Purkayastha.

Trimeresurus mayaae sp. nov.
Trimeresurus stejnegeri in part Malhotra & Thorpe 2004: 230
Trimeresurus yunnanensis in part Malhotra & Thorpe 2004: 230
Trimeresurus gumprechti David & Mathew 2005: 87

Diagnosis: A species of the genus Trimeresurus, characterized by (1) hemipenes short and strongly spinose; (2) body green in both males and females; (3) interstitial skin black; (4) moderate size, with maximum total length of 750mm; (5) conspicuous bicolored postocular stripe in males, thin and white below, wide and bright red above, faint white or no postocular stripe present in female (6) vivid, wide bicolored ventrolateral stripe, deep red below/white above in males, extending along the lower half of the tail, white in females; (7) eyes rust coloured in males, green in females; (8) tail mostly rusty or reddish-brown (9) V: 157–162; SC: 54–67 in males and V: 153; SC: 54–55 in females; (10) first supralabial distinct from nasal; (11) 19 or 21 dorsal scale rows at midbody, moderately keeled; (12) snout covered with rather enlarged juxtaposed scales; (13) internasals never in contact, separated by 1–2 scale; (14) supraoculars narrower than internasals, separated by 9–10 smooth cephalic scales.

Etymology: The species epithet is an eponym honouring late Maya Singh Rathee, mother of Yashpal Singh Rathee. English name: Maya’s Pit Viper.

Yashpal Singh Rathee, Jayaditya Purkayastha, Hmar Tlawmte Lalremsanga, Siddharth Dalal, Lal Biakzuala, Lal Muansanga and Zeeshan A. Mirza. 2022. A New Cryptic Species of Green Pit Viper of the Genus Trimeresurus Lacépède, 1804 (Serpentes, Viperidae) from northeast India. PLoS ONE. 17(5): e0268402. DOI: 10.1371/journal.pone.0268402

[Mammalogy • 2022] Cacajao amuna • Molecular Phylogeny and Systematics of Bald Uakaris, Genus Cacajao Lesson, 1840 (Primates: Pitheciidae), with the Description of A New Species

Cacajao amuna
 Silva, Amaral, Roos, Bowler, Röhe, Sampaio, Janiak, Bertuo, Santana, Souza Silva, Rylands, Gubili, Hrbek & Boubli, 2022

Cacajao amuna
Kanamari White Uakari

• We revised the taxonomic classification of bald-headed uakaris, genus Cacajao.
• The use of a single mitochondrial marker did not recover the shallower relationships.
• ddRADseq phylogenetic analyses retrieved five lineages of bald-headed uakaris.
• We proposed a taxonomic arrangement with five species of bald-headed uakaris.
• A new species is described based on molecular and morphological information.

Bald uakaris, genus Cacajao, are Amazonian primates currently classified as one species and four subspecies based on the patterns of pelage coloration. In this study, we test if their current taxonomy is represented by the phylogenetic relationship of the main lineages retrieved from molecular data. We included, for the first time, all bald uakari taxa in a mitochondrial (cytochrome b) and genome-wide (ddRAD) phylogenetic analyses. We also examined the pattern of pelage colouration in specimens from zoological collections. Having determined the number of lineages using Maximum Likelihood and the species tree using coalescent analyses, we test their divergence time using a Bayesian approach. While the cytochrome b analysis only recovered two clades, the ddRAD analysis supported the reciprocal monophyly of five lineages of bald uakaris, with all clades including only individuals with distinct and exclusive diagnostic phenotypic characters. We found that species diversification in Cacajao occurred during the last 300 Kya and may have been influenced by the formation of rivers and flooded forests in western Amazonia. We propose that the four bald uakari subspecies currently recognised can be upgraded to species level and we describe the white uakaris from the basin of the Rio Tarauacá as a new species.
Keywords: Amazon rainforest, Neotropical primates, Phylogenetic Species Concept, Pitheciinae, species delimitation

The five species of bald uakaris.
A – Cacajao amuna. B – Cacajao calvus. C – Cacajao novaesi. D – Cacajao rubicundus. E – Cacajao ucayalii.
Drawing by Stephen Nash. 

 Cacajao calvus (I. Geoffroy Saint-Hilaire, 1847) – White Bald Uakari

Cacajao rubicundus (I. Geoffroy Saint-Hilaire and Deville, 1848) – Red Bald Uakari

 Cacajao ucayalii Thomas, 1928 – Ucayali Bald Uakari

Cacajao novaesi Hershkovitz, 1987 – Novaes’ Bald Uakari

The patterns of pelage colouration in Cacajao amuna sp. n. (top row)
and C. calvus (bottom row).

Cacajao amuna sp. n.

  Etymology: The new species is named in tribute to the Amuna-dyapas, a Kanamari subgroup of the Kanamaris do Rio Juruá Indigenous Territory (TI Kanamaris do Rio Juruá), on the right bank of the Rio Taraucá. “Amuna” is a Katukina vocative that means “uakari monkey”. We suggest the common name “the Kanamari White Uakari”.

Felipe Ennes Silva, João Valsecchi do Amaral, Christian Roos, Mark Bowler, Fabio Röhe, Ricardo Sampaio, Mareike Cora Janiak, Fabrício Bertuol, Marcelo Ismar Santana, José de Souza Silva Júnior, Anthony B. Rylands, Chrysoula Gubili, Tomas Hrbek, Allan D. McDevitt and Jean P. Boubli. 2022. Molecular Phylogeny and Systematics of Bald Uakaris, Genus Cacajao Lesson, 1840 (Primates: Pitheciidae), with the Description of A New Species. Molecular Phylogenetics and Evolution. In Press, 107509. DOI: 10.1016/j.ympev.2022.107509 

[Botany • 2022] Begonia kimlongii (Begoniaceae, sect. Petermannia) • A New Species from Dak Lak, Central Highlands, Vietnam

Begonia kimlongii T.S. Hoang, V. C. Nguyen & C.W. Lin, 

in Nguyen, Hoang, Lin & Nguyen, 2022. 


Begonia kimlongii is described as a new species endemic to Vietnam, from the montane forests of Dak Lak Province. It is mostly similar with Begonia cucphuongensis but can be distinguished by the oblanceolate to obovate leaves, terminal inflorescence with dimorphic bracts and 5-tepaled pistillate flowers. Using IUCN criteria, B. kimlongii is proposed to be Data Deficient (DD).

Keywords: biodiversity, endemism, taxonomy, Eudicots


Begonia kimlongii 

Van Canh Nguyen, Thanh Son Hoang, Che-Wei Lin and Van Khuong Nguyen. 2022. Begonia kimlongii (B. sect. Petermannia, Begoniaceae), A New Species from Dak Lak, Central Highlands, Vietnam.  Phytotaxa. 547(2); 193-200. DOI: 10.11646/phytotaxa.547.2.7

[Botany • 2022] Curcuma achrae (Zingiberaceae, sect. Ecomata) • A New Species from Central Thailand

Curcuma achrae Saensouk & Boonma, 

 in Saensouk, Boonma & Saensouk, 2022. 
ขมิ้นทอง ||  Rheedea. 32(1)
photos by Thawatphong Boonma

Curcuma achrae Saensouk & Boonma, a new species of Curcuma subgenus Ecomata (Zingiberaceae) from Nakhon Nayok province, Central Thailand is described and illustrated along with photographs, notes on its distribution and habitat. A revised identification key to 68 species of the genus Curcuma in Thailand is also presented.

Keywords: Curcuma flaviflora, C. xanthella, Nakhon Nayok province, Taxonomy.

Curcuma achrae Saensouk & Boonma:
a. Habit–oblique top view; b. Flower–side view; c. Lateral staminodes; d. Labellum; e. Flower– front view; f. Stamen–side view; g. Dorsal corolla lobe; h. Lateral corolla lobes; i. Floral tube with ovary, calyx, and front view of stamen; j. Bract; k. Bracteole; l. Calyx; m. Ovary with epigynous glands; n. Inflorescence with flowers, rhizome, and tuberous roots
(from T. Boonma 24; drawn by Thawatphong Boonma).

Curcuma achrae Saensouk & Boonma:
a. Plants in natural habitat; b. Pseudostem–top view; c. Pseudostem–side view; d. Distal part of sheathing bract–side view; e. Young inflorescence–side view; f. Anthesis in natural habitat
(a–c in September 2019; d in late April 2020; f. e & f in late March 2020, 2021 respectively; 
photos by Thawatphong Boonma).

Curcuma achrae Saensouk & Boonma:
 a. Flower, (upper row) dorsal corolla lobe and lateral corolla lobes, (lower row) two lateral staminodes, labellum, calyx, cross-section of flower, ovary with epigynous glands, bracteole, flower bud, and bract; b. Reddish V-shaped patch at base of staminode; c. Stamen–side, oblique side, front and back view; d. Inflorescence with rhizome, spike varied in sizes and colours–side view; e. Inflorescence–oblique top view; f. Close up flower–front view
 (photos by Thawatphong Boonma).

Curcuma achrae Saensouk & Boonma, sp. nov. 

Similar to Curcuma xanthella Škornik. but differs. C. achrae having pubescent petioles (vs. glabrous), green with a reddish tinge (vs. green); adaxially sparsely hairy leaves with fine hairs along the midrib (vs. glabrous on both surfaces); fertile bracts connate in the lower 1/7 (vs. connate in the lower 1/4), apex mucronate (vs. narrowly acute); base of labellum white, middle and apical part golden yellow, with embossed two golden yellow median band running along the midrib from tip to base and divided into two Y-shaped patches at base (vs. base of labellum white to light yellow, middle and apical part warm yellow, with two yellow-orange swollen bars running across the center); staminodes irregularly ovate, apex acute, golden yellow gradually fades to pale yellow at base, with reddish V-shaped or triangle patch at base of staminodes (vs. staminodes irregularly oblong, apex obtuse, bright warm yellow without red patch); anther appear almost straight (vs. anther appear as L-shaped), spurs c. 3 mm long (vs. spurs c. 6 mm long), crest 3–4 mm long with apex acute to rounded or slightly truncate (vs. crest not obvious).

Habitat: Occurring at elevations of 60–152 m, growing in sandy loam soil at the boundary, close to the watercourse, in semi-open area in a deciduous forest.

 Distribution: Curcuma achrae is known from the southwestern part of the Sankamphaeng mountain range in Mueang Nakhon Nayok district, Nakhon Nayok province, Central Thailand (Fig. 4). 

Etymology: The specific epithet “achrae” is chosen to honour Assistant Professor Dr. Achra Thammathaworn (botanist of Khonkaen University), who is a specialist in botany and teacher of many Thai botanists.
Vernacular name: Khamin Thong -- ขมิ้นทอง. 

Surapon Saensouk, Thawatphong Boonma and Piyaporn Surapon Saensouk. 2022. Curcuma achrae (Zingiberaceae), A New Species from Central Thailand.  Rheedea. 32(1); 30-45. DOI: 10.22244/rheedea.2022.32.01.03